US4820624A - Corner development type silver halide photographic emulsions - Google Patents

Corner development type silver halide photographic emulsions Download PDF

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US4820624A
US4820624A US07/138,405 US13840587A US4820624A US 4820624 A US4820624 A US 4820624A US 13840587 A US13840587 A US 13840587A US 4820624 A US4820624 A US 4820624A
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silver halide
emulsion
group
grains
development type
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Kazunori Hasebe
Masahiro Asami
Naoto Ohshima
Keisuke Shiba
Toshihiro Nishikawa
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Fujifilm Holdings Corp
Fujifilm Corp
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Fuji Photo Film Co Ltd
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
    • G03C7/3022—Materials with specific emulsion characteristics, e.g. thickness of the layers, silver content, shape of AgX grains
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/015—Apparatus or processes for the preparation of emulsions
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/035—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/07—Substances influencing grain growth during silver salt formation
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/10—Organic substances
    • G03C1/12—Methine and polymethine dyes
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/015—Apparatus or processes for the preparation of emulsions
    • G03C2001/0153—Fine grain feeding method
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/035—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
    • G03C2001/03517—Chloride content
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/035—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
    • G03C2001/03523—Converted grains
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/035—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
    • G03C2001/03576—Containing no iodide
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/09—Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising
    • G03C2001/091—Gold
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/09—Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising
    • G03C2001/095—Disulfide or dichalcogenide compound
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
    • G03C2001/348—Tetrazaindene
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C2200/00—Details
    • G03C2200/38—Lippmann (fine grain) emulsion

Definitions

  • This invention relates to novel silver halide photographic emulsions. More particularly, the invention relates to high-speed and stable silver halide photographic materials using the above-described silver halide emulsions and capable of being quickly processed, and even more particularly to high-speed and stable color photographic materials mainly using a light-sensitive silver chloride or silver chlorobromide emulsion and providing high utilization efficiency of silver halide.
  • Silver chlorides or silver chlorobromide of, in particular, cubic grains having a (100) crystal plane are very useful for rapid simple processing.
  • they have the disadvantages that the sensitivity thereof is low, chemical sensitization and spectral sensitization are not easily achieved, the sensitivity obtained is unsuitable, and the silver halide grains have a tendency to produce fog.
  • a first object of this invention is to provide a color photographic light-sensitive emulsion having high speed and stably giving processed products having improved uniformity using a silver chloride or silver chlorobromide emulsion useful for quick and simple processing.
  • a second object of this invention is to provide a color photographic light-sensitive emulsion giving good tightness of shadow portions and having high utilization efficiency of silver halide, whereby the coating amount of silver may be less.
  • a corner development type silver halide photographic emulsion wherein the silver halide crystals in the silver halide emulsion are cubic or tetradecahedral grains having at least substantial (100) planes and the emulsion is controlled so that at least 70 wt% of developed silver halide crystals (grains) observed on applying a light exposure of 1/50 second to the emulsion under the light-exposure condition corresponding to (maximum density-minimum density) ⁇ 3/4 of the silver image in the characteristic curve of the emulsion obtained by the developer and the development condition which are used for processing a photographic light-sensitive material formed by coating the emulsion on a support and after the initiation of the development, stopping the development with an aqueous solution of 5% glacial acetic acid are developed at the corners of the cubic or tetradecahedral crystals or at the vicinity of the corners.
  • the CDG emulsion used in this invention is a silver halide emulsion, wherein the silver halide crystals are cubic or tetradecahedral grains having at least substantial (100) planes and the emulsion is controlled so that at least 70% of the developed silver halide crystals (grains) observed in the case of applying a light exposure of 1/50 second to the emulsion under a light exposure condition corresponding to (maximum density-minimum density) ⁇ 3/4 of the silver image in the characteristic curve of the emulsion obtained by the developer and developing under the development condition which are used for processing the above-described photographic material, and just after initiation of the development, quickly stopping the development with an aqueous solution of 5% glacial acetic acid are developed at one or more corners of the vicinity of the cubic or tetradecahedral crystals or at the vicinity of at least one of the corners.
  • FIG. 1 is an electron microphotograph (5,000 degree of magnification) showing the silver halide crystals of Emulsion (A) prepared in Experiment (1) described below at the beginning of development, and
  • FIG. 2 is an electron microphotograph (5,000 degree of magnification) showing the silver halide crystals of Emulsion (B) used in this invention prepared in Experiment (1) at the beginning of development.
  • Whether or not a cubic grain or tetradecahedral grain silver halide emulsion corresponds to the CDG emulsion of this invention may be determined by the method described above and more specifically, it can be determined by the following method.
  • a silver halide emulsion is coated on a support at a silver amount of from 0.5 g/m 2 to 3 g/m 2 to produce a light-sensitive material, a uniform light-exposure of 1/50 second is applied to this light-sensitive material under a light-exposure condition corresponding to (maximum density-minimum density) ⁇ 3/4 of the silver image in the characteristic curve obtained by developing the photographic material using a developer having the composition described below at 30° C., and after developing the photographic material with the same developer for 10 seconds at 30° C., the development is stopped with an aqueous solution of 5% by wt glacial acetic acid.
  • CDG Corner Development Grains
  • the emulsion corresponds to the CDG emulsion of this invention.
  • the ratio of the grains is determied by observing 200 numbers of developed silver grains through electlon microscope, and calculating.
  • the vicinity of the corners means the area is within the area of a regular square having a side length of about 1/3, preferably 1/5, of the diameter of a circle having the same area as the projected area of the cubic or tetradecahedral grain and having a corner of the square at the corner of the grain.
  • At least 70 wt%, more preferably at least 80 wt%, of the developed silver halide grains in the case of applying a light exposure of 1/50 second to a silver halide emulsion, developing the emulsion under the above-described condition, and stopping the development are developed at the corners of the cubic or tetradecahedral crystals or at the vicinity of the corners.
  • the CDG emulsion for use in this invention can be preferably prepared by the following manner.
  • the host silver halide crystals which are used for preparing the CDG emulsion of this invention are cubic or tetradecahedral crystal grains (which may have roundish corners and higher order planes) substantially having a (100) plane, the halogen composition thereof is silver bromide, silver chlorobromide, or silver chloride containing no silver iodide or 2 mol% or less silver iodide, and the host grains are preferably silver halide crystals containing at least 5 mol% silver chloride, more preferably silver halide crystals containing at least 80 mol% silver chloride, and particularly preferably silver halide crystals containing at least 99 mol% silver chloride or pure silver chloride crystals.
  • the mean grain size of the host silver halide grains is preferably from 0.2 ⁇ m to 2 ⁇ m and the distribution state thereof is preferably monodisperse.
  • the monodisperse silver halide emulsion for use in this invention is a silver halide emulsion having a grain size distribution of less than 0.25 in the coefficient of variation (S/r) on the grain sizes of the silver halide grains, wherein r is a mean grain size and S is a standard deviation of grain sizes.
  • the mean grain size r is defined as follows; ##EQU1## and the coefficient of variation S is defined as follows; ##EQU2##
  • Each grain size in this invention is the diameter of a circle having an area corresponding to the projected area of the silver halide grain as viewed by a well-known method in this field (usually, electron micro-photography) as described in T. H. James et al "The Theory of the photographic Process", 3rd edition, pages 36-43, published by McMillan Co., 1966. Accordingly, when silver halide grains have other forms than that of a sphere (e.g., cube, octahedron, tetradecahedron, tabular form, potato form, etc.), the mean grain size r and the standard deviation S can be obtained as described above.
  • the coefficient of variation of the grain sizes of silver halide grains is 0.25 or less, preferably 0.20 or less, more preferably 0.15 or less, and most preferably 0.10 or less.
  • the CR compound is generally a material which functions to delay or completely obstruct recrystalization and the initiation of the halogen conversion as compared to other crystal planes having no such compound adsorbed thereto by selectively adsorbing onto specific crystal planes and in particular a material which is mainly (selectively) adsorbed on the (100) planes of silver halide grains and functions to restrain the initiation of the recrystalization and the conversion on the (100) planes.
  • Suitable CR compounds which can be used in this invention are cyanine dyes, merocyanine dyes, mercaptoazoles (specific examples of which are the compounds shown by formulae (XXI), (XXII) or (XXIII) as described hereinafter in detail), and nucleic acid decomposition products (e.g., intermediate decomposition products of deoxyribonucleic acids or ribonucleic acids, adenine, quanine, uracil, cytocil, thymine, etc.).
  • nucleic acid decomposition products e.g., intermediate decomposition products of deoxyribonucleic acids or ribonucleic acids, adenine, quanine, uracil, cytocil, thymine, etc.
  • Z 101 and Z 102 each represents an atomic group necessary for forming a heterocyclic nucleus.
  • suitable heterocyclic nuclei include, 5- or 6-membered cyclic nuclei containing a nitrogen atom and an other atom such as a sulfur atom, an oxygen atom, a selenium atom, or a tellurium atom as the hetero atoms (these rings may have a condensed ring bonded thereto or may be substituted) are preferred.
  • heterocyclic nuclei examples include thiazole nuclei, benzothiazole nuclei, naphthothiazole nuclei, selenazole nuclei, benzoselenazole nuclei, naphthoselenazole nuclei, oxazole nuclei, benzoxazole nuclei, naphthoxazole nuclei, imidazole nuclei, benzimidazole nuclei, naphthimidazole nuclei, 4-quinoline nuclei, pyrroline nuclei, pyridine nuclei, tetrazole nuclei, indolenine nuclei, benzindolenine nuclei, indole nuclei, tellurazole nuclei, benzotellurazole nuclei, naphthotellurazole nuclei, etc.
  • R 101 and R 102 each represents an alkyl group, an alkenyl group, an alkynyl group, or an aralkyl group. These groups may be unsubstituted or substituted.
  • the alkyl group included unsubstituted alkyl groups and substituted alkyl groups and these groups may be straight chain, branched, or cyclic groups.
  • the carbon atom number of the alkyl group is preferably from 1 to 8.
  • substituents for the substituted alkyl groups are a halogen atom (e.g., chlorine, bromine, fluorine, etc.), a cyano group, an alkoxy group, a substituted or unsubstituted amino group, a carboxylic acid group, a sulfonic acid group, a hydroxy group, etc., and the alkyl group may have one substituent or a plurality of substituents.
  • alkenyl group examples include a vinyl-methyl group, etc.
  • aralkyl group examples include a benzyl group, a phenethyl groups, etc.
  • m 101 represents an integer of 1, 2 or 3.
  • R 103 represents a hydrogen atom, a lower alkyl group, an aralkyl group, or an aryl group and R 104 represents a hydrogen atom.
  • R 104 represents a hydrogen atom.
  • Specific examples of the aforesaid aryl group are a substituted or unsubstituted phenyl group.
  • R 103 represents a hydrogen atom and R 104 represents a hydrogen atom, a lower alkyl group, or an aralkyl group or further may combine with R 102 to form a 5-membered or 6-membered ring.
  • R 103 may combine with the other R 103 to form a hydrocarbon ring or a heterocyclic ring. These rings are preferably a 5- or 6-membered ring.
  • j 101 and k 101 represent 0 or 1
  • X 101 represents an acid anion
  • n 101 represents 0 or 1.
  • Z 201 and Z 202 have the same significance as Z 101 or Z 102 . Also, R 201 and R 202 have the same significance as R 101 or R 102 .
  • R 203 represents an alkyl group, an alkenyl group, an alkynyl group, or an aryl group (e.g., a substituted or unsubstituted phenyl group).
  • m 201 represents 0, 1 or 2.
  • R 204 represents a hydrogen atom, a lower alkyl group, or an aryl group and also when m 201 is 2, R 204 and R 204 may combine with each other to form a hydrocarbon ring or a heterocyclic ring. These rings are preferably a 5- or 6-membered ring.
  • Q 201 represents a sulfur atom, an oxygen atom, a selenium atom or >N--R 205 , wherein R 205 has the same significance as R 203 and j 201 , X - 201 , and n 201 have the same significance as j 101 , k 101 , X - 101 , and n 101 , respectively, in formula (I). ##STR3##
  • Z 301 represents an atomic group necessary for forming a heterocyclic ring.
  • heterocyclic rings are the nuclei described above Z 101 Z 102 in formula (I) and specific examples of other nuclei are thiazoliadine nuclei, thiazoline nuclei, benzothiazoline nuclei, naphthothiazoline nuclei, selenazolidine nuclei, selenazoline nuclei, benzoselenazoline nuclei, naphthoselenazoline nuclei, benzoxazoline nuclei, naphthoxazoline nuclei, dihydropyridine nuclei, dihydroquinoline nuclei, benzimidazoline nuclei, naphthimidazoline nuclei, etc.
  • Q 301 has the same significance as Q 201 in formula (II)
  • R 301 has the same significance as R 101 or R 102 in formula (I)
  • R 302 has the same significance as R 203 in formula (II).
  • R 303 has the same significance as R 204 in formula (II), and when m 301 is 2 or 3, R 303 may combine with other R 303 to form a hydrocarbon ring or a heterocyclic ring, preferably a 5 to 7-membered ring containing nitrogen atom as a hetero atom.
  • j 301 has the same significance as j 101 in formula (I).
  • Bromide ions are preferably supplied slowly at a relatively low concentration.
  • the Bromide ions may be supplied as water-soluble bromide such as potassium bromide but it is desirable to supply ions in the form of a bromide donator capable of controlling the supply amount or the supply rate of bromide ions.
  • organic halogen compounds, inorganic halogen compounds covered by a capsule film or semi-osmosis coating can be used.
  • a silver halide having finer grain size than the host grains and a higher silver bromide content than that of the host silver halide grains is preferably used.
  • a silver halide emulsion containing host silver chloride grains having the aforesaid CR compound adsorbed thereto is mixed with a silver halide emulsion containing fine silver bromide grains having a mean grain size of about 0.1 ⁇ m in an amount corrresponding to about 1 mol% of the host silver chloride grains and the mixed emulsion is ripened, the silver bromide grains are dissolved off and after reaching equilibrium, a layer of a new halogen composition is formed on the surface of the host grains and the reaction stops.
  • the silver halide composition of the surface of the silver halide grains in this invention can be determined using an ESCA 750 type spectroscope, trade name, made by Shimazu-du Pont Co., by an X-ray photoelectron spectroscopy (XPS) method.
  • ESCA 750 type spectroscope trade name, made by Shimazu-du Pont Co.
  • XPS X-ray photoelectron spectroscopy
  • the silver chloride content in the silver halide composition of the CDG of this invention is preferably 90 mol% or more, and most preferably 95 mol% or more.
  • composing substantially silver chloride means that silver chloride is contained in an amount of 90 mol% or more.
  • the average silver bromide content of the surface of the CDG is about 10 mol% or less and the aforesaid "surface" can be considered to be within about 10 lattices according to FIG. 44 on page 136 of above-described Hyomen Bunseki (Surface Analysis).
  • the development initiating point is controlled and concentrated on the corners or the vicinity of the corners.
  • the development center is concentrated and very high speed is obtained, and further since being such is protected by a new silver halide structure the stability of the emulsion is greatly improved and thus excellent stability can be obtained with less fog and without reducing the rapid developing property. Also, since the CDG emulsion has astonishingly high contrast and excellent pressure resistance, the emulsion has the advantages that the occurrence of pressure desentization is less and the formation of fog at unexposed portions is less.
  • the CR compounds for use in this invention have the characteristic that they can be selected from sensitizing dyes.
  • the CR compounds useful for the (100) plane can be selected from the compounds shown by formulae (I), (II) and (III) described above and since these compounds have a function as sensitizing dyes, the use of these compounds is advantageous for increasing the spectral sensitivity and, in particular, the spectral sensitivity of the emulsion can be stabilized further.
  • the discovery of such an excellent combination of the CR compounds and the excellent merits thereof is astonishing.
  • the CR compounds(s) may be combined with other sensitizing dye(s) or super color sensitizer(s) to increase further the sensitivity and stability of the silver halide emulsion.
  • the CR compounds may be combined with aminostilbene compounds substituted by a nitrogen-containing heterocyclic nucleus group (e.g., the compounds of formula (I), in particular, specifically illustrate compounds (I-1) to (I-17) described in the specification of Japanese Patent Application (OPI) No. 174738/87 filed by the same applicant as herein and the compounds described in U.S. Pat. Nos. 2,933,390 and 3,635,721), aromatic organic acid-formaldehyde condensation products (as described in U.S. Pat. No. 3,743,510), cadmium salts, azaindene compounds, etc.
  • the combinations described in U.S. Pat. Nos. 3,615,613, 3,615,641, 3,617,295, and 3,635,721 are particularly useful.
  • preferable process is the simultaneous additive process, more preferably under a content of pAg, to prepare mixed silver halide for obtaining host grains.
  • the silver halide emulsions for use in this invention are produced by controlling the pH and addition time of silver nitrate and alkali halides.
  • a preferred pH for forming the host silver halide grains in this invention is from 2 to 10.
  • doping can be applied to the emulsion by using rhodium complex salts, iridium complex salts, lead salts, etc., or a noble metal sensitization (gold sensitization, etc.,) can be applied thereto.
  • rhodium complex salts iridium complex salts, lead salts, etc.
  • a noble metal sensitization gold sensitization, etc.,
  • sulfur sensitization using a thiosulfate, allylthiocarbamide, cystein, etc., or reduction sesitization using a polyamine, stannous chloride, etc. can be applied to the emulsion.
  • the aforesaid CR compound is dissolved in a water-miscible organic solvent such as an alcohol (e.g., methanol, etc.), ethyl acetate, etc. or a mixture of such with water and added to the above-described host silver halide emulsion as a solution thereof.
  • a water-miscible organic solvent such as an alcohol (e.g., methanol, etc.), ethyl acetate, etc. or a mixture of such with water and added to the above-described host silver halide emulsion as a solution thereof.
  • the CR compound may be added to the emulsion as a dispersion thereof in an aqueous gelatin solution or an aqueous solution of a surface active agent.
  • the addition amount thereof is preferably from 10 -5 mol% to 10 -2 mol%, and more preferably from 10 -5 mol% to 10 -3 mole% per mol of the host silver halide.
  • the host silver halide emulsion is mixed with a fine grain high bromide content emulsion as described above and the mixture is ripened while properly controlling the temperature and pAg in the range of from 30° C. to 80° C. and the silver ion concentration range of pAg 5 to 10, respectively.
  • sensitizing dye(s) or super color sensitizer(s) may be added thereto for spectral sensitization.
  • fog inhibitors such as mercaptotriazoles, mercaptotetrazoles, benzotriazoles, etc., can be used the silver halide emulsion for use in this invention.
  • a silver chlorobromide emulsion containing a high content of silver chloride is preferably used and for the emulsion, fog inhabitors or stabilizers strongly adsorbing to the silver halide grains, such as mercapto compounds, nitrobenzotriazole compounds, benzotriazole compounds, etc., are used. Also, development accelerators, halation preventing agents, irradiation preventing agents, optical whitening agents, etc., may be used for the silver halide emulsions.
  • Most preferred stabilizers which are used for the silver halide emulsions in this invention are those represented by following formula (XXI), (XXII) or (XXIII): ##STR5## wherein R represents an alkyl group, an alkenyl group or an aryl group and X represents a hydrogen atom, an alkali metal atom, an ammonium group or a precursor thereof.
  • alkali metal atoms are a sodium atom, a potassium atom, etc.
  • ammonium group are a tetramethylammonium group, aa triemthylbenzylammonium group, etc.
  • the precursor is a group capable of becoming a hydrogen atom or an alkali metal atom under alkaline conditions and examples thereof are an acetyl group, a cyanoethyl group, a methanesulfonylethyl group, etc.
  • the alkyl group and alkenyl group include unsubstituted groups and substituted groups as well as alicyclic groups.
  • substituents for the substituted alkyl group are a halogen atom, a nitro group, a cyano group, a hydroxy group, an alkoxy group, an aryl group, an acylamino group, an alkoxycarbonylamino group, a ureido group, an amino group, a heterocyclic group, an acyl group, a sulfamoyl group, a sulfonamido group, a thioureido group, a carbamoyl group, an aalkylthio group, an arylthio group, a heterocyclic thio group, a carboxylic acid group, a sulfonic acid group, or the salts of these acids.
  • ureido group thioureido group, sulfamoyl group, carbamoyl group, and amino group each includes unsubstituted groups, N-alkyl-substituted group, and N-aryl-substituted groups.
  • aryl group examples are a phenyl group and a substituted phenyl group and examples of substituents are an alkyl group and the substituents described above as to the substituent for the alkyl group.
  • Y represents a sulfur atom or an oxygen atom
  • L represents a divalent linking group
  • R represents a hydrogen atom, an alkyl group, an alkenyl group, or an aryl group
  • X has the same significance as X in formula (XXI) described above
  • n represents 0 or 1.
  • alkyl group and the alkenyl group shown by R, and X have the same significance as defined above as to R and X of formula (XXI).
  • divalent linking group shown by L are ##STR7## etc., (wherein R 0 , R 1 , and R 2 each represents a hydrogen atom, an alkyl group, or an aralkyl group) or a combination thereof.
  • R and X have the same significance as defined above for formula (XXI); L has the same significance as defined above for formula (XXII); R 3 has the same significance as defined R.
  • any of the layers of silver halide color photographic material means light-sensitive emul9lsion layer(s) and/or the light-insensitive hydrophilic colloid layer(s) of the color photographic material.
  • the addition amount of the compound shown by formula (XXI), (XXII), OR (XXIII) is preferably from 1 ⁇ 10 -5 mol to 5 ⁇ 10 -2 mol, and more preferably from 1 ⁇ 10 -4 mol to 1 ⁇ 10 -2 mol per mol of silver halide where such is incorporated in the silver halide color photographic material and is preferably from 1 ⁇ 10 -6 mol/liter to 1 ⁇ 10 -3 mol/liter, and more preferably from 5 ⁇ 10 -6 mol/liter to 5 ⁇ 10 -4 mol/liter, where such is incorporated in a color developer.
  • the color couplers In addition to general requirements such as color hues and high extinction coefficient for the color couplers, since the CDG emulsion shown particularly high development progress, the color couplers must have high activity so that the coupling coloring reaction of the couplers with the oxidation product of a color developing agent such as a p-phenylenediamine derivative does not become the rate determining step. From this view point, use of the couplers represented by following formula (IV), (V), (VI), or (VII) is preferred in this invention.
  • R 1 , R 4 , and R 5 each represents an aliphatic group, an aromatic group, a heterocyclic group, an aromatic amino group, or a heterocyclic amino group
  • R 2 represents an aliphatic group
  • R 3 and R 6 each represents a hydrogen atom, a halogen atom, an aliphatic group, an aliphatic oxy group, or an acylamino group
  • R 7 and R 9 each represents a substituted or unsubstituted phenyl group
  • R 8 represents a hydrogen atom, an aliphatic acyl group, an aromatic acyl group, an aliphatic sulfonyl group, or an aromatic sulfonyl group
  • R 10 represents a hydrogen atom or a substituent
  • Q represents a substituted or unsubstituted N-phenylcarbamoyl group
  • Za and Zb each represents methine, substituted methine, or ⁇ N--;
  • R2 and R3 or R5 and R6 may combine and form a 5-, 6-, or 7-membered ring.
  • the compound shown by formula (IV), (V), (VI), (VII), or (VIII) described above may form a dimer or higher polymer at R 1 , R 2 , R 3 , or Y 1 ; R 4 , R 5 , R 6 , or Y 2 ; R 7 , R 8 , R 9 , or Y 3 ; R 10 , Z a , Z b , or Y 4 ; or Q or Y 5 .
  • couplers C-1) to (C-40), couplers (M-1) to (M-42), and couplers (Y-1) to (Y-46) described in pages 36 to 78-3 of the specification of Japanese Patent Application No. 175233/86 and more preferable examples of the couplers are as follows. ##STR11##
  • the generally used amount of the color coupler described above is in the range of from 0.001 to 1 mol per mol of light-sensitive silver halide, and preferably is from 0.01 to 0.5 mol for a yellow coupler, from 0.003 to 0.3 mol for a magenta coupler, and from 0.002 to 0.3 mol for a cyan coupler, per mol of light-sensitive silver halide.
  • the preferred amount of silver halide coated is from 1.5 g/m 2 to 0.1 g/m 2 in the case of using a reflection support and from 7 g/m 2 to 0.2 g/m 2 in the case of using a transparent support.
  • couplers are incorporated in silver halide emulsion layers as a dispersion in at least one high-boiling organic solvent.
  • high-boiling organic solvents represented by following formula (A) to (E) are preferably used.
  • W 1 , W 2 , and W 3 each represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group;
  • W 4 represents W 1 , OW 1 , or S--W 1 ; and n represents an integer of from 1 to 5; when n is an integer of 2 ot more W 4 S may be the same or different; and in formula (E), said W 1 and W 2 may combine and form a condensed ring.
  • the color photographic emulsions of this invention may further contain hydroquinone derivatives, aminophenol derivatives, amines, gallic acid derivatives, catechol derivatives, ascorbic acid derivatives, non-coloring couplers, sulfonamidophenol derivatives, etc., as color fogging preventing agentor color mixing preventing agents.
  • fading preventing agents can be used.
  • organic fading preventing agents are hyroquinones, 6-hydroxychromans, 5-hydroxycoumarans, spirochromans, p-alkoxyphenols, hindered phenols such as bisphenols, gallic acid derivatives, methylenedioxybenzenes, aminophenols, hindered amines and the ether or ester derivatives obtained by silyling or alkylating the phenolic hydroxy groups of these compounds.
  • metal complexes such as (bissalicylaldoxymate) nickel complexes and (bis-N,N-dialkyldithiocarbamte) nickel complexes can be used.
  • image stabilizers described in Japanese Patent Application (OPI) No. 125732/84 can be particularly advantageously used for stabilizing magenta images formed using pyrazolotriazole type magenta couplers.
  • benzotriazole series ultraviolet absorbents are preferably used together.
  • the ultraviolet absorbent may be co-emulsified with the cyan coupler.
  • the coating amount of the ultraviolet absorbent may be that sufficient for imparting light stability to cyan dye images but since if the amount thereof is too high, unexposed portions (background portions) of the color photographic material are sometimes yellowed, the amount thereof is usually in their range of from 1 ⁇ 10 -4 mol/m 2 to 2 ⁇ 10 -3 mol/m 2 , and in particular, from 5 ⁇ 10 -4 mol/m 2 to 1.5 ⁇ 10 -3 mol/m 2 .
  • Ultraviolet absorbents are incorporated in one of both layers adjacent cyan coupler-containing red-sensitive emulsion layer or, preferably in both the layers, in a conventional layer construction of color photographic paper.
  • the ultraviolet absorbents may be co-emulsified with color mixing preventing agents.
  • another protective layer may be formed thereon as the outermost layer.
  • the outermost protective layer may contain a matting agent with an optional particle size or a mixture of latexes having different particle sizes.
  • ultraviolet absorbents may be incorporated in hydrophilic colloid layer(s) as well.
  • a reflection support which can be used in this invention, it is preferred for color images formed in the silver halide emulsion layers to be viewed clearly and this is achieved by increasing the reflectivity of the support
  • examples of such supports include a support coated with a hydrophobic resin containing a light reflecting material such as titanium oxide, zinc oxide, calcium carbonate, calcium sulfate, etc., and a support composed of a vinyl chloride resin having a light reflective material dispersed therein.
  • Transparent supports can also be used in this invention. Transmittance of light of the transparent support is preferably not more than 50%.
  • This invention can be applied to a multilayer multicolor photographic light-sensitive material having at least two different spectral sensitivities on a support.
  • a multilayer natural color photographic material usually has at least one red-sensitive silver hade emulsion layer, at least one green-sensitive silver halide emulsion layer, and at least one blue-sensitive silver halide emulsion layer on a support.
  • the order of these layers can be optionally selected as desired.
  • each of the above-described silver halide emulsion layers may be composed of two or more silver halide emulsion layers having different light sensitivity or a light-insensitive layer may be present between two or more silver halide emulsion layers having the same color sensitivity.
  • the color photographic light-sensitive material of this invention has auxiliary layers such as protective layer(s), interlayers, a filter layer, antihalation layer(s), a backing layer, etc., in addition to silver halide emulsion layers on a support.
  • auxiliary layers such as protective layer(s), interlayers, a filter layer, antihalation layer(s), a backing layer, etc., in addition to silver halide emulsion layers on a support.
  • gelatin is advantageously used but other hydrophilic colloids can be also used.
  • suitable protective colloids are proteins such as gelatin derivatives, graft polymers of gelatin and other polymers, albumin, casein etc.; cellulose derivatives such as hydroxyethyl cellulose, carboxymethyl cellulose, cellulose sulfuric acid ester, etc.; saccharose derivatives such as sodium alginate, starch derivatives, etc.; and synthetic hydrophilic polymers such as polyvinyl alcohol, polyvinyl alcohol partial acetal, poly-N-vinylpyrrolidone, polyacrylic acid, polymethacrylic acid, polyacrylamide, polyvinylimidazole, polyvinylpyrazole, etc.
  • proteins such as gelatin derivatives, graft polymers of gelatin and other polymers, albumin, casein etc.
  • cellulose derivatives such as hydroxyethyl cellulose, carboxymethyl cellulose, cellulose sulfuric acid ester, etc.
  • saccharose derivatives such as sodium alginate, starch derivatives, etc.
  • synthetic hydrophilic polymers such as poly
  • Lime gelatin as well as acid-treated gelatin and enzyme-treated gelatin as described in Bull, Soc. Sci. Phot. Japan, No. 16, 30(1966) may be used as the gelatin and further the hydrolyzed products and the enzyme decomposition products of gelatin can be also used.
  • the color photographic materials of this invention may further contain various additives such as stabilizers, stain preventing agents, developing agents or precursors thereof, development accelerators or the precursors therefor, lubricants, mordants, matting agents, antistatic agents, plasticizers, and other photographically useful additives in addition to the above-described additives.
  • additives such as stabilizers, stain preventing agents, developing agents or precursors thereof, development accelerators or the precursors therefor, lubricants, mordants, matting agents, antistatic agents, plasticizers, and other photographically useful additives in addition to the above-described additives.
  • additives such as stabilizers, stain preventing agents, developing agents or precursors thereof, development accelerators or the precursors therefor, lubricants, mordants, matting agents, antistatic agents, plasticizers, and other photographically useful additives in addition to the above-described additives.
  • Typical examples of these additives are described in Research Disclosure, No. 17643 (December, 1978) and ibid
  • the color photographic materials of this invention may further contain water-soluble dyes in the hydrophilic colloid layers as filter dyes or for irradiation prevention, halation prevention, and other various purposes.
  • the color photographic materials of this invention may further contain stilbene series, triazine series, oxazole series, or coumarine series whitening agents in the photographic emulsion layers or other hydrophilic colloid layers.
  • These whitening agents may be water-soluble or water-insoluble whitening agents may be used as the form of dispersion.
  • Another feature of this invention is quick stabilization of the color development process and in a color development process shorter than 3 minutes and 40 seconds, preferably shorter than 3 minutes, more preferably shorter than 2 minutes and 30 seconds.
  • the coating amount of silver halide is about 1.5 g/m 2 or less, and preferably about 1.2 g/m 2 or less, as the amount of silver and also when a transparent support is used, the coating amount of silver halide is about 7 g/m 2 or less, and preferably 5 g/m 2 or less.
  • the reduced coating amount of silver halide is very useful not only for color development but also to improve the desilvering step.
  • An aromatic primary amino color developing agent which is used for a color developer in the case of developing the color photographic materials of this invention includes various color developing agents widely used in various color photographic processes. These color developing agents include aminophenol series derivatives and p-phenylenediamine series delivatives. Preferred examples of color developing agents are p-phenylenediamine derivatives and specific examples thereof are illustrated below without limiting, however, the color developing agents which can be used in this invention.
  • D-11 4-Amino-3-methyl-N-ethyl-N- ⁇ -ethyoxyethylaniline.
  • these p-phenylenediamine derivatives may be salts thereof, such as sulfates, hydrochlorides, sulfites, p-toluenesulfonates, etc.
  • salts thereof such as sulfates, hydrochlorides, sulfites, p-toluenesulfonates, etc.
  • the amount of the aromatic primary amine color developing agent used is from about 0.1 g to about 20 g, and preferably from about 0.5 g to about 10 g, per liter of color developer.
  • the color developer which is used in this invention may contain hydroxylamines.
  • the hydroxylamine may be used in the form of the free amine in the color developer but is generally used in the form of a water-soluble acid salt thereof.
  • a water-soluble acid salt thereof examples include the sulfates, oxalates, hydrochlorides, phosphates, carbonates, acetates, etc.
  • Hydroxylamines may be substituted or unsabstituted hydroxylamines, for example, the nitrogen atom of the hydroxylamine may be substituted with an alkyl group.
  • the addition amount of hydroxylamine is preferably from 0 to 10 g, and more preferably from 0 to 5 g, per liter of color developer. If the stability of color developer is maintained, the addition amount thereof preferably is as small as possible.
  • the color developer contains sulfite such as sodium sulfite, potassium sulfite, sodium bisulfite, potassium bisulfite, sodium metasulfite, potassium metasulfite, or a carbonyl sulfuric acid addition product as a preservative.
  • sulfite such as sodium sulfite, potassium sulfite, sodium bisulfite, potassium bisulfite, sodium metasulfite, potassium metasulfite, or a carbonyl sulfuric acid addition product as a preservative.
  • the addition amount thereof is preferably from 0 to 20 g/liter, and more preferably from 0 to 5 g/liter.
  • the amount thereof preferably is as small as possible such that the stability of the color developer is maintained.
  • preservatives which can be used are aromatic polyhydroxy compounds described in Japanese Patent Applicaton (OPI) Nos. 49828/77, 47038/81, 32140/81, 160142/84, and U.S. Pat. No. 3,746,544; hydroxyacetones described in U.S. Pat. No. 3,615,503 and British Pat. No. 1,306,176; ⁇ -aminocarbonyl compounds described in Japanese Patent Application (OPI) Nos. 143020/77 and 89425/78; various metals described in Japanese Patent Application (OPI) Nos. 44148/82 and 53749/82; various saccharides described in Japanese Patent Application (OPI) No.
  • preservatives may be used as a mixture thereof if desired.
  • Particularly preferred preservatives are 4,5-dihydroxy-m-benzenedisulfonic acid, poly(ethyleneimine), and triethanolamine.
  • the pH of the color developer which is used for developing the color photographic materials of this invention is preferably form 9 to 12, and more preferably from 9 to 11.0.
  • the color developer may further contain other compounds known as components for color dvelopers.
  • suitable buffers are carbonates, phosphates, borates, tetraborates, hydroxybenzoates, glycine salts, N,N-dimethylglycine salts, leucine salts, norleucine salts, guanine salts, 3,4-dihydroxyphenylalanine salts, alanine salts, aminobutyrates, 2-amino-2-methyl-1, 3-propanediol salts, valine salts, proline salts, trishydroxyaminomethane salts, lysine salts, etc.
  • carbonates, phosphates, tetraborates, and hydroxybenzoates have the advantages that they have excellent solubility and also buffer action at high pH region of higher than 910, they are added to color developer without adversely influencing (fog, etc.,) photographic properties, and they are available at low cost and hence these buffers is particularly preferred.
  • buffers are sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate, sodium tertiaryphosphate, potassium tertiary phosphate, sodium secondary phosphate, potassium secondary phosphate, sodium borate, potassium borate, sodium tetraborate (borax), potassium tetraborate, sodium o-hydroxybenzoate (sodium salicylate), potassium o-hydroxybenzoate, sodium 5-sulfo-2-hydroxybenzoate (sodium 5-sulfosalicylate), potassium 5-sulfo-2-hydroxybenzoate (potassium 5-sulfosalicylate), etc.
  • the buffers for use in this invention are not limited to these compounds.
  • the addition amount of the buffer to the color developer is preferably more than 0.1 mol/liter, and particularly preferably from 0.1 mol/liter to 0.4 mol/liter.
  • color developers of this invention may contain various chelating agents as a precipitation preventing agent for calcium or magnesium, or for improving the stability of the color developers.
  • Suitable chelating agents are preferably organic acid compounds and examples thereof are aminopolycarboxylic acids described in Japanese Patent Publication Nos. 30496/73 and 30232/69, organic sulfonic acids described in Japanese Patent Application (OPI) No. 96347/81, Japanese Patent Publication No. 39359/81, and West German Pat. No. 2,227,639, phosphonocarboxylic acids described in Japanese Patent Application (OPI) Nos. 102726/77, 42730/78, 121127/79, 126241/80, and 65956/80, and the compounds described in Japanese Patent Application (OPI) Nods. 195845/83, 203440/83, and Japanese Patent Publication No. 40900/78. Specific examples of chelating agents are illustrated below without limiting the chelating agents for use in this invention:
  • chelating agents may be, if desired, used as a mixture of two or more.
  • the addition amount of the chelating agent may be that sufficient for blocking metal ions in the color developer and, for example, from 0.1 g to 10 g per liter of the color developer is a suitable amount.
  • the color developer may further contain, if described, a development accelerator.
  • thioether series compounds and 1-phenyl-3-pyrazlidones are preferred.
  • the color developer used in this invention may further contain, if desired, optionally an antifoggant.
  • Suitable antifoggants are an alkali metal halide such as potassium bromide, sodium chloride, potassium iodide, etc., or other organic antifoggants may be used on combination with the above-described compound shown by formula (XXI), (XXII), or (XXIII).
  • organic antifoggants are nitrogen-containing heterocyclic compounds such as benzotriazole, 6-nitrobenzimidazole, 5-nitroisoindazole, 5-methylbenzotriazole, 5-nitrobenzotriazole, 5-chloro-benzotriazole, 2-thiazolylbenzimidazole, 2-thiazolylmethyl-benzimidazole, hydroxyazaindrizine, etc.; other mercapto-substituted heterocyclic compounds than those shown by formula (XXI), (XXII), or (XXIII) described above, such as 2-mercatobenzimidazole, 2-mercaptobenzothiazole, etc.; adenine; and further mercapto-substituted aromatic compounds such as thiosalicyclic acid.
  • nitrogen-containing heterocyclic compounds such as benzotriazole, 6-nitrobenzimidazole, 5-nitroisoindazole, 5-methylbenzotriazole, 5-nitrobenzotriazole, 5-chloro-benzotri
  • antifoggants may be dissolved from the color photographic materials during processing and accumulated in the color developer but the accumulated amount is preferably less from the stand point of reducing the amount to be discharged.
  • the color developer in this invention may contain an optical whitening agent.
  • optical whitening agents are 4,4-diamino-2,2'-disulfostilbene series compounds and these preferred.
  • the addition amount thereof is from 0 to 5 g/liter, and preferably from 0.1 g/liter to 2 g/liter.
  • the color developer may contain a surface active agent such as an alkylsulfonic acid, an aryl-sulfonic acid, the aliphatic carboxylic acid, an aromatic carboxylic acid, etc.
  • a surface active agent such as an alkylsulfonic acid, an aryl-sulfonic acid, the aliphatic carboxylic acid, an aromatic carboxylic acid, etc.
  • the temperature of use of the color developer for developing the color photographic materials of this invention is preferably from 30° C. to 50° C., and more preferably from 30° C. to 42° C.
  • the replenishing amount for the color developer is less than 2,000 ml, and preferably less than 1,500 ml, per square meter of color photographic material but the replenishing amount is preferably less from the standpoint of reducing the amount of waste solution.
  • the replenishing amount of color printing photographic material is generally 400 ml or less, more preferably 150 ml or less.
  • a restoring agent for the oxidation product of a color developing agent and a trapping agent for the oxidation product of the restoring agent as described in Japanese Patent Application No. 259799/86.
  • Suitable bleaching agents for the bleach solution or blix (bleach-fix) solution which can be used for processing the color photographic materials after color development include ferric ion complexes. i.e., the complexes of ferric ions and a chelating agent such as an aminopolycarboxylic acid, an aminopolyphosphoric acid, or the salts thereof.
  • aminopolycarboxyaltes or aminopolyphosphates are the salts of aminopolycarboxylic acids or aminopolyphosphoric acids and an alkali salt, ammonium salt, or a water-soluble amine salt are suitable.
  • alkali metal salts are sodium, potassium, lithium, etc.
  • water-soluble amine salts are salts of alkylamines such as methylamine, diethylamine, triethylamine, butrylamine, etc., alicyclic amines such as alkylamine, cyclohexylamine, etc., arylamines such as aniline, m-toluidine, etc., and heterocyclic amines such as pyridine, morpholine, piperidine, etc.
  • aminopolycarboxylic acids aminopolyphosphoric acids
  • salts thereof useful as chelating agents are;
  • the ferric ion complex may be used in the form of a complex salt or may be formed in a solution using a ferric salt such as ferric sulfate, ferric chloride, ferric nitrate, ferric ammonium sulfate, ferric phosphate, etc., and a chelating agent such as aminopolycarboxylic acid, aminopolyphosphoric acid, phosphonocarboxylic acid, etc.
  • a complex salt such as ferric sulfate, ferric chloride, ferric nitrate, ferric ammonium sulfate, ferric phosphate, etc.
  • a chelating agent such as aminopolycarboxylic acid, aminopolyphosphoric acid, phosphonocarboxylic acid, etc.
  • the complexes may be used along or as a mixture of two or more complexes.
  • the ferric salts may be used alone or as a mixture of two or more kinds of ferric salts.
  • the chelating agents may be used alone or as a mixture of two or more thereof.
  • the chelating agent(s) may be used in an excessive amount to the amount of ferric ion complex formed.
  • the ferric complexes aminopolycarboxylic acid ferric complexes are preferred and the addition amount thereof is from 0.01 to 1.0 mol/liter, and preferably from 0.05 to 0.50 mol/liter.
  • the bleach solution or the blix solution may, if desired, contain a bleach accelerator.
  • a bleach accelerator is compounds having a mercapto group or a disulfide group as described in U.S. Pat. No. 3,893,858, West German Pat. Nos. 1,290,812, and 2,059,988, and Japanese Patent Application (OPI) Nos. 32736/78, 57831/78, 37418/78, 65732/78, 72623/78, 95630.78, 95631/78, 104232/78, 124424/78, 141623/78, 28426/78, Research Disclosure, No. 17129 (July, 1978), etc.; thiazolidine derivatives as described in Japanese Patent Application (OPI) No.
  • the compounds having a mercapto group or a disulfide group are preferred from the standpoint providing a large acceleration effect and the compounds described in U.S. Pat. No. 3,893,858, West German Pat. No. 3,893,858, West German Pat. No. 1,290,812, and Japanese Patent Application (OPI) No. 95630/78 are particularly preferred.
  • the bleach solution or the blix solution used in this invention may contain a rehalogenating agent such as a bromide (e.g., potassium bromide, sodium bromide, ammonium bromide, etc.), a chloride (e.g., potassium chloride, sodium chloride, ammonium chloride, etc.), or an iodide (e.g., ammonium iodide).
  • a bromide e.g., potassium bromide, sodium bromide, ammonium bromide, etc.
  • a chloride e.g., potassium chloride, sodium chloride, ammonium chloride, etc.
  • an iodide e.g., ammonium iodide
  • the bleach solution or blix solution may further contain, if desired, a corrosion preventing agent, e.g., inorganic acids, organic acids, and alkali metal or ammonium salts thereof each having a pH buffer capability, such as boric acid, borax, sodium metaborate, acetic acid, sodium acetate, sodium carbonate, potassium carbonate, phopshorous acid, phosphoric acid, sodium phosphate, citric acid, sodium citrate, tartaric acid, ammonium nitrate, etc., or guanidine, etc.
  • a corrosion preventing agent e.g., inorganic acids, organic acids, and alkali metal or ammonium salts thereof each having a pH buffer capability, such as boric acid, borax, sodium metaborate, acetic acid, sodium acetate, sodium carbonate, potassium carbonate, phopshorous acid, phosphoric acid, sodium phosphate, citric acid, sodium citrate, tartaric acid, ammonium nitrate, etc., or
  • Suitable fixing agents for the blix solution or the fix solution which is used in this invention are thiosulfates such as sodium thiosulfate, ammonium thiosulfate, etc.; thiocyanates such as sodium thiocyanate, ammonium thiocyanate, etc.; thioether compounds such as ethylenebis-thioglycolic acid, 3,6-diethia-1,8-octanediol, etc.; and water-soluble silver halide solvents such as thioureas, etc. They can be used alone or as a mixture thereof.
  • a specific blix solution containing fixing agent and a large amount of a halide such as potassium iodide described in Japanese Patent Application (OPI) No. 155354/80 can be used.
  • a thiosulfate in particular ammonium thiosulfate is preferred.
  • the amount of the fixing agent is preferably from 0.3 mol/liter to 2 mols/liter, and more preferably from 0.5 mol/liter to 1.0 mol/liter.
  • the pH range of the blix solution or fix solution used in this invention is preferably 3 to 10, and more preferably from 4 to 9. If the pH is lower than the aforesaid range, the deterioration of the solution and the formation of leuco compound from cyan dyes are accelerated although desilvering may be improved. Also, if the pH is higher than the range, desilvering is delayed and stain tends to form.
  • sulfuric acid nitric acid, acetic acid (glacial acetic acid), bicarbonate, ammonia, potassium hydroxide, sodium hydroxide, sodium carbonate, potassium carbonate, etc.
  • acetic acid Glacial acetic acid
  • bicarbonate ammonia
  • potassium hydroxide sodium hydroxide
  • sodium carbonate sodium carbonate
  • potassium carbonate etc.
  • the blix solution may further contain an optical whitening agent, a defoaming agent, a surface active agent, and an organic solvent such as polyvinylpyrrolidone, methanol, etc.
  • the blix solution or fix solution in this invention contains a sulfite ion-releasing compound such as a sulfite (e.g., sodium sulfite, potassium sulfite, and ammonium sulfite), a bisulfite (e.g., ammonium bisulfite, sodium bisulfite, and potassium bisulfite), a metabisulfite (e.g., potassium metabisulfite, sodium metabisulfite, and ammonium bisulfite), etc., as a preservative.
  • the amount of the preservative is preferably from about 0.02 mol/liter to 0.50 mol/liter, and more preferably from about 0.04 to 0.40 mol/liter calculated as sulfide ions.
  • a sulfite is generally used but ascorbic acid, a carbonyl bisulfurous acid addition product, a carbonyl compound, etc., may be used together with the sulfite.
  • the blix solution or the fix solution may contain, if necessary, a buffer agent, an optical whitening agent, a chelating agent, an antifungal agent, etc. etc.
  • ion (III) complex salts of ion (III) complex salts of ethylenediaminetetaacetic acid, diethylenetriaminepentaacetic acids, and ion (III) complex salts of cyclohexanediaminetetraacetic acids for the blix solution or the bleach solution in this invention.
  • wash processing in this invention is used in the broad meaning as described above.
  • the amount of washing water is not easily defined since the amount depends upon the number of tanks for multistage countercurrent washing and the amount of the component carried by the color photographic materials from prior baths but the bleach and fix components may be carried to the final wash bath or tank.
  • the amount of wash water is preferably more than about 1,000 ml, more preferably more than 5,000 ml, per square meter of color photographic material.
  • water saving processing it is better to use water in an amount of from 100 ml to 1,000 ml per square meter of color photographic material.
  • the washing temperature is usually from 15° C. to 45° C., and preferably from 20° C. to 35° C.
  • Wash water from the wash step may contain various compounds for preventing precipitation and stabilizing wash water.
  • chelating agents such as inorganic phosphoric acids, aminopolycarboxylic acids, organic phosphonic acids, etc.
  • antibacterial or antifungal agents for preventing the growth of various bacteria, algae, and molds, such as the compounds described in Journal of Antibacterial and Antifungal Agents, Vol. 11, No. 5, 207-223(1983) and the compounds described in Hiroshi Horiguchi, Bokin Bobai no Kagaku (Antibacterial and Antifungal Chemistry)
  • metal salts such as magnesium salts and aluminum salts, alkali metal salts, ammonium salts, and surface active agents can be present.
  • the compounds described in Journal of Photographic Science and Engineering. Vol. 6, 344-359(1065) may be added thereto.
  • water from which calcium compounds and magnesium compounds are deleted which is described in Japanese Patent Application No. 133632/61, may be used as a wash water instead of antifungal.
  • This invention is particularly effective in greatly saving the amount of wash water by adding a chelating agent, an antibacterial agent, and an antifungal agent to the wash water and by employing multistage countercurrent washing using two or more tanks. Also, the invention is effective in practicing multistage countercurrent stabilization processing (so-called stabilization processing)as described in Japanese Patent Application (OPI) No. 8543/82 in place of an ordinary wash step. in these cases, the blix component in the final bath may be 5 ⁇ 10 -2 or less, and preferably 1 ⁇ 10 -2 or less.
  • the stabilization solution in this invention contains various compounds for stabilizing color images formed.
  • various additives such as various buffers for controlling the pH (e.g., pH 3 to 8) of the photographic layers (e.g., borates, metaborates, borax, phosphates, carbonates, potassium hydroxide, sodium hydroxide, aqueous ammonia, monocarboxylic acids, dicarboxylic acids, polycarboxylic acids, etc., as a combination thereof) and an aldehyde such as form aldehyde can be present.
  • various buffers for controlling the pH (e.g., pH 3 to 8) of the photographic layers e.g., borates, metaborates, borax, phosphates, carbonates, potassium hydroxide, sodium hydroxide, aqueous ammonia, monocarboxylic acids, dicarboxylic acids, polycarboxylic acids, etc., as a combination thereof
  • an aldehyde such as form aldehyde
  • additives for the stabilizing solution are chelating agents (e.g., inorganic phosphoric acids, aminopolycarboxylic acids, organic phosphonic acids, aminopolyphosphonic acids, phosphonocarboxylic acids, etc.), sterilizers (e.g., thiazole series sterlilzers, isothiazole series sterilizers, halogenated phenols, sulfonylamide, benzotriazole, etc.), surface active agents, optical whitening agents, hardening agents, etc. They may be used as a mixture two or more of the same kind or different kinds of additives.
  • chelating agents e.g., inorganic phosphoric acids, aminopolycarboxylic acids, organic phosphonic acids, aminopolyphosphonic acids, phosphonocarboxylic acids, etc.
  • sterilizers e.g., thiazole series sterlilzers, isothiazole series sterilizers, halogenated phenols, sulfonylamide,
  • ammonium salts such as ammonium chloride, ammonium nitrate, ammonium sulfate, ammonium phosphate, ammonium sulfite, ammonium thiosulfate, etc.
  • a constant finish is obtained by preventing a change in the composition of each processing solution using a replenisher for each processing solution.
  • the amount of each replenisher can be reduced to a half or less than a half of the standard amount of the replenisher for a reduction in cost.
  • Each processing bath may be, if desired, equipped with a heater, a temperature sensor, a liquid level sensor, a circulation pump, a filter, a floating lid, a squeegee a nitrogen gas stirrer, an air stirrer, etc.
  • color photogrphic materials of this invention can be applied any processing using color developer.
  • photographic processing for color photographic papers, color reversal photographic papers, color positive photographic films, color negative photographic films, color reversal photographic film, etc. can be employed.
  • corner development type grain silver halide emulsion (CDG emulsions) are used in this invention.
  • Solution 2 and Solution 3 were added to the solution.
  • Solution 4 and Solution 5 were simultaneously added to the mixture thus formed over a period of 10 minutes.
  • the emulsion thus formed was split into two equal-volume portions. To one of them were added a 0.6% solution of a blue spectral sensitizing dye (CR-7 described above) in an amount of 12.6 ml as the CR compound and further a fine grain silver bromide emulsion having a mean grain size of 0.05 ⁇ m in an amount of 0.5 mol% to the host silver chloride emulsion, and the mixed emulsion was ripened for 10 minutes at 58° C.
  • a blue spectral sensitizing dye CR-7 described above
  • Emulsion (A) The remaining portion of the emulsion not containing any CR compound, etc., was designated Emulsion (A).
  • Emulsion (A) and Emulsion (B) thus formed were mixed with an emulsified dispersion of a yellow coupler (ExY) (the structure of the coupler is shown below in Example 1) and after adjusting the composition thereof as shown hereinafter, the emulsion was coated on a polyethylene terephthalate (PET) film and a protective layer of a thickness of 3 ⁇ m composed of gelatin was formed on the emulsion layer.
  • PET polyethylene terephthalate
  • a protective layer of a thickness of 3 ⁇ m composed of gelatin was formed on the emulsion layer.
  • 1-oxy-3,5-cichloro-s-triazine sodium salt was used as a gelatin hardening agent.
  • An emulsion of super fine silver bromide grains having a mean grain size of 0.05 ⁇ m was obtained by simultaneously adding an aqueous silver nitrate solution and an aqueous potassium bromide solution to an aqueous gelatin solution with vigorously stirring at 40° C. over a period of 10 minutes.
  • the aqueous potassium bromide solution was added while controlling the flow rate so that the silver potential to SCE (saturated calomel electrode) became +50 mV.
  • the exposure amount to obtain a density of (maximum density--minimum density) ⁇ 3/4 when developed with the developer described below for 3 minutes at 30° C. was previously determined and after applying a uniform exposure to ecah sample at the exposure amount, the sample was developed with the developer for 10 seconds at 30° C. Thereafter, the development was immediately stopped with an aqueous 5% acetic acid solution.
  • the development time must be set to a proper time according the developing property of the emulsion used and it is preferred to select suitable conditions by changing the developing time and temperature.
  • the sample was immersed in water at 40° C. containing a gelatin decomposing enzynme, the emulsion layer was separated from the PET film and dispersed in water, oily components such as the coupler, the coupler solvent, etc., were separated and removed, and further the silver halide grains in the middle of the development were deposited by centrifugal separation.
  • the silver halide grains thus obtained were observed by an electron microscope according to the replica method as is disclosed in Jap. J. Appln. Phys. 8 1377-1389 (1969) and the development initiation points were determined.
  • FIG. 1 and FIG. 2 The electron microphotographs of the silver halide crystals obtained using Emulsion A and Emulsion B at the beginning of development are shown in FIG. 1 and FIG. 2, respectively.
  • the ratio of the corner development type grains (CDG) in the silver halide grains obtained by adding the CR compound, etc., according to this invention was 86%.
  • the ratio of the corner development type grains was markedly less as compared to the case of using Emulsion (B).
  • Each coating solution was prepared by mixing each silver halide emulsion, various chemicals, and an emulsified dispersion of coupler. The preparation methods are shown below.
  • Emulsion (B) prepared above in Experiment (1) was used as the emulsion of this invention.
  • Emulsion (A) prepared in Experiment (1) was most suitably chemically sensitized by only adding thereto sodium thiosulfate at 58° C. and after finishing the chemical sensitization, the CR compound (CR-7) was added thereto at 2.6 ⁇ 10 -4 mol per mol of silver to provide Emulsion I).
  • Samples 201 and 202 each has the some composition except that blue-sensitive layer of Sample 201 contains Emulsion I and blue-sensitive layer of Sample 202 contains Emulsion B.
  • each layer on Sample 101 was shown below.
  • the numerals show coated amounts in g/m 2 but shown the coated amount (g/m 2 ) as silver for silver halide emulsion layer.
  • the support was a paper support, both surfaces of which were coated with polyethylene wherein titanium dioxide as white pigment and blue dye (ultramarine) were contained in polyethylene having the first layer thereon.
  • the hardening agent used in each layer was sodium 1-oxy-3,5-dichloro-s-triazine.
  • Each sample was subjected to a sensitometric gradation exposure through a green filter using an actinometer (FWF type, made by Fuji Photo Film Co., Ltd., color temperature of light source 3200° K.).
  • the light exposure in this case was applied at an exposure tome of 1.10 sec. and at an exposure amount of 250 CMS.
  • compositions of the processing solutions were as follows.
  • the CDG emulsion of this invention As described above, by using the CDG emulsion of this invention, a very high sensitivity is attained in an intrinsic sensitizing region and a spectral sensitizing region and also the stability is improved.
  • a high contrast emulsion is obtained and since such an emulsion has excellent pressure resistance, the emulsion has the advantage that the occurrence of pressure desensitization is less and the formation of fog at the unexposed portions due to pressure is less.

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US07/138,405 1986-12-26 1987-12-28 Corner development type silver halide photographic emulsions Expired - Lifetime US4820624A (en)

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Cited By (22)

* Cited by examiner, † Cited by third party
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USH760H (en) 1988-01-06 1990-04-03 Fuji Photo Film Co., Ltd. Silver halide photographic materials
US4968595A (en) * 1987-06-05 1990-11-06 Fuji Photo Film Co., Ltd. Silver halide photographic emulsions
US5037728A (en) * 1987-09-11 1991-08-06 Fuji Photo Film Co., Ltd. Photographic material package unit
US5057402A (en) * 1988-01-18 1991-10-15 Fuji Photo Film Co., Ltd. Silver halide photographic materials
US5061615A (en) * 1988-05-13 1991-10-29 Fuji Photo Film Co., Ltd. Silver halide photographic materials
US5070008A (en) * 1988-01-30 1991-12-03 Konica Corporation Light-sensitive silver halide photographic material
US5258272A (en) * 1990-01-25 1993-11-02 Fuji Photo Film Co., Ltd. Silver halide photographic material and silver halide emulsion
US5272052A (en) * 1992-08-27 1993-12-21 Eastman Kodak Company Process for the preparation of a grain stabilized high chloride tabular grain photographic emulsion (IV)
US5275930A (en) * 1992-08-27 1994-01-04 Eastman Kodak Company High tabularity high chloride emulsions of exceptional stability
US5284745A (en) * 1989-12-18 1994-02-08 Fuji Photo Film Co., Ltd. Silver halide photographic material
US5393653A (en) * 1991-09-04 1995-02-28 Fuji Photo Film Co., Ltd. Method for preparing a silver halide emulsion and a silver halide color photographic light-sensitive material containing the emulsion
USH1548H (en) * 1992-09-17 1996-06-04 Konica Corporation Silver halide color photosensitive material
USH1594H (en) * 1992-10-06 1996-09-03 Konica Corporation Silver halide color photographic light-sensitive material
US5618656A (en) * 1993-03-22 1997-04-08 Eastman Kodak Company Method of processing originating and display photographic elements using common processing solutions
US5922525A (en) * 1996-04-08 1999-07-13 Eastman Kodak Company Photographic material having a red sensitized silver halide emulsion layer with improved heat sensitivity
US5925509A (en) * 1995-09-29 1999-07-20 Eastman Kodak Company Photographic material having a red sensitized silver halide emulsion layer with improved heat sensitivity
US6120982A (en) * 1995-09-29 2000-09-19 Eastman Kodak Company Red sensitizing dye combinations for high chloride emulsions
US20040038157A1 (en) * 2001-12-28 2004-02-26 Fuji Photo Film Co., Ltd. Color image forming method using silver halide color photosensitive material
US8722322B2 (en) 2012-01-31 2014-05-13 Eastman Kodak Company Photonic heating of silver grids
WO2014130256A1 (en) 2013-02-20 2014-08-28 Eastman Kodak Company Enhancing silver conductivity
WO2014204683A1 (en) 2013-06-17 2014-12-24 Eastman Kodak Company Method for improving patterned silver conductivity
WO2015116318A1 (en) 2014-01-29 2015-08-06 Eastman Kodak Company Silver halide conductive element precursor and devices

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DE69328884T2 (de) 1992-03-19 2000-12-07 Fuji Photo Film Co Ltd Verfahren zur Herstellung einer photographischen Silberhalogenidemulsion
DE69329509T2 (de) 1992-03-19 2001-05-03 Fuji Photo Film Co Ltd Verfahren zur Herstellung einer photographischen Silberhalogenidemulsion
JPH09152696A (ja) 1995-11-30 1997-06-10 Fuji Photo Film Co Ltd ハロゲン化銀カラー写真感光材料
JP3739908B2 (ja) 1997-09-30 2006-01-25 富士写真フイルム株式会社 ハロゲン化銀乳剤、ハロゲン化銀乳剤製造方法、ハロゲン化銀カラー写真感光材料及び画像形成方法

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DE2951670C2 (de) * 1978-12-26 1986-09-18 E.I. Du Pont De Nemours And Co., Wilmington, Del. Fotografische Silberhalogenidgelatineemulsion, sowie ihre Herstellung und Verwendung
US4463087A (en) * 1982-12-20 1984-07-31 Eastman Kodak Company Controlled site epitaxial sensitization of limited iodide silver halide emulsions
JPS61122641A (ja) * 1984-11-19 1986-06-10 Konishiroku Photo Ind Co Ltd ハロゲン化銀写真乳剤の製造方法

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US3865598A (en) * 1970-11-11 1975-02-11 Fuji Photo Film Co Ltd Photographic silver halide emulsions
US3864134A (en) * 1971-10-28 1975-02-04 Fuji Photo Film Co Ltd Silver bromoiodide photographic emulsion with improved green sensitivity
US4564591A (en) * 1981-12-02 1986-01-14 Konishiroku Photo Industry Co., Ltd. Silver halide color photographic material
US4495277A (en) * 1982-08-12 1985-01-22 Agfa-Gevaert Aktiengesellscaft Photographic silver halide emulsion
US4605610A (en) * 1984-03-15 1986-08-12 Agfa-Gevaert Aktiengesellschaft Emulsion rich in silver chloride, photographic recording material and process for the production of photographic recordings

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4968595A (en) * 1987-06-05 1990-11-06 Fuji Photo Film Co., Ltd. Silver halide photographic emulsions
US5037728A (en) * 1987-09-11 1991-08-06 Fuji Photo Film Co., Ltd. Photographic material package unit
USH760H (en) 1988-01-06 1990-04-03 Fuji Photo Film Co., Ltd. Silver halide photographic materials
US5057402A (en) * 1988-01-18 1991-10-15 Fuji Photo Film Co., Ltd. Silver halide photographic materials
US5070008A (en) * 1988-01-30 1991-12-03 Konica Corporation Light-sensitive silver halide photographic material
US5061615A (en) * 1988-05-13 1991-10-29 Fuji Photo Film Co., Ltd. Silver halide photographic materials
US5284745A (en) * 1989-12-18 1994-02-08 Fuji Photo Film Co., Ltd. Silver halide photographic material
US5258272A (en) * 1990-01-25 1993-11-02 Fuji Photo Film Co., Ltd. Silver halide photographic material and silver halide emulsion
US5482824A (en) * 1990-01-25 1996-01-09 Fuji Photo Film Co., Ltd. Silver halide photographic material and silver halide emulsion
US5393653A (en) * 1991-09-04 1995-02-28 Fuji Photo Film Co., Ltd. Method for preparing a silver halide emulsion and a silver halide color photographic light-sensitive material containing the emulsion
US5272052A (en) * 1992-08-27 1993-12-21 Eastman Kodak Company Process for the preparation of a grain stabilized high chloride tabular grain photographic emulsion (IV)
US5275930A (en) * 1992-08-27 1994-01-04 Eastman Kodak Company High tabularity high chloride emulsions of exceptional stability
USH1548H (en) * 1992-09-17 1996-06-04 Konica Corporation Silver halide color photosensitive material
USH1594H (en) * 1992-10-06 1996-09-03 Konica Corporation Silver halide color photographic light-sensitive material
US5618656A (en) * 1993-03-22 1997-04-08 Eastman Kodak Company Method of processing originating and display photographic elements using common processing solutions
US5925509A (en) * 1995-09-29 1999-07-20 Eastman Kodak Company Photographic material having a red sensitized silver halide emulsion layer with improved heat sensitivity
US6120982A (en) * 1995-09-29 2000-09-19 Eastman Kodak Company Red sensitizing dye combinations for high chloride emulsions
US5922525A (en) * 1996-04-08 1999-07-13 Eastman Kodak Company Photographic material having a red sensitized silver halide emulsion layer with improved heat sensitivity
US20040038157A1 (en) * 2001-12-28 2004-02-26 Fuji Photo Film Co., Ltd. Color image forming method using silver halide color photosensitive material
US6746832B2 (en) 2001-12-28 2004-06-08 Fuji Photo Film Co., Ltd. Color image forming method using silver halide color photosensitive material
US8722322B2 (en) 2012-01-31 2014-05-13 Eastman Kodak Company Photonic heating of silver grids
WO2014130256A1 (en) 2013-02-20 2014-08-28 Eastman Kodak Company Enhancing silver conductivity
WO2014204683A1 (en) 2013-06-17 2014-12-24 Eastman Kodak Company Method for improving patterned silver conductivity
WO2015116318A1 (en) 2014-01-29 2015-08-06 Eastman Kodak Company Silver halide conductive element precursor and devices

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EP0273429B1 (de) 1993-08-18
EP0273429A2 (de) 1988-07-06
EP0273429A3 (en) 1990-08-08
DE3787088D1 (de) 1993-09-23
DE3787088T2 (de) 1993-12-09

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